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Radius of solid right circular cylinder decrease by 20% & its height increase by 10% find %change in its volume |
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Answer» LET radius=r,height=h NEW radius=.80r,new height=1.1h old vol of cyl.=pi*r^2*h new vol=pi*(.8R)^2*(1.1h) =.704pi*r^2*h % reduction=.269*100=26.9% |
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